| ≥1 piece |
Color steel sandwich board is a kind of material composed of internal and external plated color steel sheets, which are surface panels, and polyurethane or rock wool or other materials, which are sandwich materials. The surface panels together, with the sandwich materials in between, pass through the automatic compound and molding machine; the steel sheets are coated with adhesive, and thin-wall channel steel is built into the panels on both sides; pressure and blanking is applied to the surface panels and core materials; the sandwich board is thus produced